JPH0267934A - Contamination preventing device for monitoring window - Google Patents
Contamination preventing device for monitoring windowInfo
- Publication number
- JPH0267934A JPH0267934A JP22007088A JP22007088A JPH0267934A JP H0267934 A JPH0267934 A JP H0267934A JP 22007088 A JP22007088 A JP 22007088A JP 22007088 A JP22007088 A JP 22007088A JP H0267934 A JPH0267934 A JP H0267934A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- monitoring
- window
- monitoring window
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 238000011109 contamination Methods 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 claims abstract description 8
- 238000012806 monitoring device Methods 0.000 claims abstract description 6
- 238000002834 transmittance Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Description
【発明の詳細な説明】
(イ)産業上の利用分野
本発明は火災報知器などにおける紫外線、可視光赤外線
等の放射線を透過する監視窓の汚れを防止する装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a device for preventing dirt on a monitoring window of a fire alarm or the like that transmits radiation such as ultraviolet rays, visible light, and infrared rays.
(ロ)従来の技術
従来の炎感知器等のセンサーや光を発する旧号灯等にお
いては、光の出入口としての窓の汚れを防ぐ方法として
、窓に深いフードを取り付は空気の移動・を妨げて、空
気によって運ばれてくるごみを防ぐ方法や、新鮮な空気
を窓の周辺に吹出してごみを追払う方式、或いは定期的
に清掃する方法等が採用されていた。(B) Conventional technology In conventional sensors such as flame detectors and old lights that emit light, deep hoods are attached to the windows as a way to prevent the windows from becoming dirty as they act as entrances and exits for light. Methods such as blocking the windows and preventing dirt from being carried by the air, blowing fresh air around the windows to drive out the trash, and periodically cleaning the windows have been adopted.
(ハ)発明が解決しようとする課題
従来のフードによる方法は視野を狭(し、空気を吹出す
方法は動力源を必要とする上に自動車・タイヤによる所
嘴泥はねのように大きな粒子の汚れは吹飛ばすことがで
きないし、また定期清掃は人出を要して高価になるとい
う問題点があった。(c) Problems to be Solved by the Invention The conventional method using a hood has a narrow field of view (and the method of blowing air requires a power source and also generates large particles such as mud splashed by automobiles and tires). There was a problem in that the dirt could not be blown away, and periodic cleaning required people to come and was expensive.
(ニ)課題を解決するための手段
監視窓前面にシャッターを設け、必要に応じてこれを開
閉する方式とし、その開閉タイミングは監視装置本体と
の信号の授受により行うことによって前記課題を解決す
る。(d) Means for solving the problem The above problem is solved by providing a shutter in front of the monitoring window, opening and closing it as necessary, and controlling the opening and closing timing by sending and receiving signals with the main body of the monitoring device. .
(ネ)作用
窓の前面近傍に窓全体を覆うように設けられたシャッタ
ーは開いている時間が短(閉じている時間の数分の一以
下であるため、窓の汚れをこれに応じて数分の一以下に
することができる。また視野を妨げることもなく人出の
使用も同様に数分の一以下にすることができる。(f) Function Shutters installed near the front of the window to cover the entire window are open for a short time (less than a fraction of the time they are closed), so the window can be cleaned up accordingly. In addition, without obstructing the field of view, the number of people using the vehicle can be reduced to less than a fraction.
(へ)実施例 図面に従って本発明の詳細な説明する。(f) Example The present invention will be explained in detail according to the drawings.
第1図は本発明の一実施例の構造を示す側断面′図であ
る。FIG. 1 is a side sectional view showing the structure of one embodiment of the present invention.
第1図において、フレーム1は監視装置本体2の監視窓
3の枠に当接して取り付けられ、該監視窓3に対面して
設けられた開口部4にはシャッター5がフレーム1に対
し軸6によりで開閉自在に取り付けられている。7はシ
ャッター5を駆動するための電磁駆動装置であり、図に
おいてはロータリーソレノイドを想定したものである。In FIG. 1, a frame 1 is mounted in contact with the frame of a monitoring window 3 of a monitoring device main body 2, and a shutter 5 is attached to an opening 4 facing the monitoring window 3 with a shaft 6 relative to the frame 1. It is attached so that it can be opened and closed freely. 7 is an electromagnetic drive device for driving the shutter 5, which is assumed to be a rotary solenoid in the figure.
第1図において、監視装置本体2の内部では監視窓3を
通して入射する放射線により火災等を検出するものであ
るが、一般に放射線が入射するのに必要な時間は数分の
一秒であり、これが火災か否かを判断するために許され
る時間は数秒ないし数十秒である。従ってこの間に数回
の入射が必要だとしても全体の時間のうちシャッター5
が開いて、窓3に放射線が届かなくてはならない時間は
数分の−ないしは数十分の−でよい。従ってこの時間だ
け電磁駆動装置7に通電して軸6を約90’回転させ、
シャッター5を破線の位置まで開き、他の時間は通電を
切ってシャッター5を閉じてお(ことができる。二の間
は窓3がほこりやごみで汚れることはない。また泥によ
る汚れも確率的に低下させることができるのと、シャッ
ター5がひさしの様な役目をして斜めに飛込む泥を防ぐ
こともできる。また、電磁駆動装置7としてのロータリ
ーソレノイドは構造が簡単でON、OFF信号のみで動
かすことができ、駆動回路も簡単なほか、m擦部分が少
ないので耐久性、信頼性が高いという特徴がある。In Fig. 1, fires and the like are detected inside the monitoring device main body 2 by the radiation that enters through the monitoring window 3, but generally the time required for the radiation to enter is a fraction of a second; The time allowed to determine whether there is a fire or not is several seconds to several tens of seconds. Therefore, even if several injections are required during this period, shutter 5
The time required for the window 3 to be open and for radiation to reach the window 3 may be several minutes - or even several tens of minutes. Therefore, the electromagnetic drive device 7 is energized for this period of time to rotate the shaft 6 approximately 90'.
You can open the shutter 5 to the position indicated by the broken line, and at other times turn off the power and close the shutter 5. During the second period, the window 3 will not get dirty with dust or dirt. There is also a chance that it will get dirty with mud. The shutter 5 can also act as an eaves to prevent mud from flying in diagonally.Also, the rotary solenoid serving as the electromagnetic drive device 7 has a simple structure and only requires ON and OFF signals. It can be moved with a chisel, the drive circuit is simple, and there are few rubbing parts, making it highly durable and reliable.
第2図は本発明の他の実施例の構造を示す側断面図であ
る。FIG. 2 is a side sectional view showing the structure of another embodiment of the present invention.
第2図において、シャッター5とフレーム1との間には
放射線の透過率の高い可撓性のフィルム8が設けられて
いる。シャッター5が閉じているときは、フィルム8は
フレーム1の内部にたわんだ状態で収納されており、シ
ャッター5が開いた時は開口部4に破線で示したように
隙間な(張るようになる。またこのフィルム8はフッソ
を含む樹脂であり基本的に汚れが付着しに(い性質を持
ったもので構成すると良い。In FIG. 2, a flexible film 8 with high radiation transmittance is provided between the shutter 5 and the frame 1. When the shutter 5 is closed, the film 8 is stored inside the frame 1 in a bent state, and when the shutter 5 is opened, there is a gap (tensioned) in the opening 4 as shown by the broken line. Also, this film 8 is preferably made of a resin containing fluorine, which basically has the property of being resistant to dirt.
第2図のごとき構造の実施例においてシャッター5が開
いている間はフィルム8が窓3へのほこりの侵入を防ぎ
、またフィルム8に付着したほこりは、シャッター5の
開閉運動に応じてフィルム8が曲げのばしされることに
よってふるい落とすことができる。In the embodiment with the structure shown in FIG. 2, the film 8 prevents dust from entering the window 3 while the shutter 5 is open, and the dust attached to the film 8 is removed from the film 8 as the shutter 5 opens and closes. can be screened out by being bent and stretched.
(ト)発明の効果
屋内外、特に風雨にさらされる屋外に設けられる信号灯
や炎感知器等のセンサー類はその窓の汚れが常に大きな
問題であるが、本発明による時は安い費用で長期間に亘
って汚れに対する保守を必要としない利点がある。例と
してトンネル内に設けられる炎感知器の場合をとると、
従来は数100ケにのぼる炎感知器を1力月に数回の割
合で人力で汚れを落とす必要があり、その費用は高額で
、且つ危険な作業であつな。(g) Effects of the invention Dirty windows are always a big problem for sensors such as signal lights and flame detectors installed indoors and outdoors, especially outdoors exposed to wind and rain. There is an advantage that no maintenance is required to prevent dirt over a long period of time. Taking the case of a flame detector installed in a tunnel as an example,
Conventionally, several hundred flame detectors had to be manually cleaned several times a month, which was expensive and dangerous work.
しかし本発明の装置を使うと数か月に亘ってこのような
費用を必要としな(なり、その経済的効果は甚大である
ばかりでなく、高所に設けられたセンサー類のように清
掃作業に危険の多い場合も効果的である。However, using the device of the present invention does not require such expenses over several months (and the economic effect is not only enormous, but also cleaning work such as sensors installed at high places). It is also effective in cases where there is a lot of danger.
第1図は本発明の一実施例の構造を示す側断面図、第2
図は本発明の他の実施例の構造を示す側断面図である。Fig. 1 is a side sectional view showing the structure of one embodiment of the present invention;
The figure is a side sectional view showing the structure of another embodiment of the present invention.
Claims (2)
面に設け監視装置が監視に必要とする時間のみ該シャッ
ターを開き、不要とする時間は閉じているごとくなした
ことを特徴とする監視窓の汚れ防止装置。(1) A dirty monitoring window characterized in that a shutter that opens and closes using an electromagnetic drive mechanism is provided on the front surface of the window, and the shutter is opened only during the time required for monitoring by the monitoring device, and remains closed during unnecessary times. Prevention device.
線の透過率のよい可撓性のフィルムで継ぎ、シャッター
の開閉動作に応じて該フィルムが屈伸するごとくなした
ことを特徴とする請求項1記載の監視窓の汚れ防止装置
。(2) A flexible film with high transmittance for monitoring radiation is connected between the movable part of the shutter and the frame, and the film bends and stretches in response to the opening and closing operations of the shutter. The device for preventing dirt on a monitoring window according to claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22007088A JPH0267934A (en) | 1988-09-02 | 1988-09-02 | Contamination preventing device for monitoring window |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22007088A JPH0267934A (en) | 1988-09-02 | 1988-09-02 | Contamination preventing device for monitoring window |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0267934A true JPH0267934A (en) | 1990-03-07 |
Family
ID=16745472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22007088A Pending JPH0267934A (en) | 1988-09-02 | 1988-09-02 | Contamination preventing device for monitoring window |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0267934A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101105660B1 (en) * | 2010-01-06 | 2012-01-18 | 서준 | Heating Container and Separable Heating nursing bottle |
-
1988
- 1988-09-02 JP JP22007088A patent/JPH0267934A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101105660B1 (en) * | 2010-01-06 | 2012-01-18 | 서준 | Heating Container and Separable Heating nursing bottle |
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